Brake Drum

Material: Gray iron/ ductile iron
Casting: Automatic production line including sand mixing, molding and pouring
Machining: CNC machining center
Inspection: Advance test equipment including CMM, tensile strength testing machine, hardness tester, spectrometer, parallel tester, etc.
Every detail contributes to our products of consistent quality and excellent performance

Detailed Product Description
(1)Material: Gray Iron 250
(2)Weight: 20kg_85kg
(3)Chemical composition:
C: 3.0-3.3% Si: 1.6-1.9% Mn: 0.7-0.9%
P: <0.12% S: <0.12%
(4)Mechanics performance:
Main body degree of hardness: 163-255HBS
Testing rod tensile strength: ≥ 220Mpa.

Our Produce process as the follows:

Melting Sand Mixing ----Molding -----Pouring ----Cooling  ----Drilling ---Inner and Outer Surface machining ---Shot Blasting --Cleaning of Casting -Precision Grinding ---Inspection --Rust Preventive treatment -packing